—Look, those great notebooks are __________in our school store. Let’s have a look.

—OK. Anybody can __________ the prices.

A．sell, buy

B．sell, afford

C．on sale, afford

D．on sale, sell

治疗消化性溃疡疗效最好的抑酸药是（）.

A.丙谷胺

B.洛赛克

C.派吡氮平

D.法莫替丁

E.米索前列醇